An inductive approach to representations of general linear groups over compact discrete valuation rings

Tyrone Crisp, Ehud Meir, Uri Onn* (Corresponding Author)

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In his seminal Lecture Notes in Mathematics published in 1981, Andrey Zelevinsky introduced a new family of Hopf algebras which he called PSH-algebras. These algebras were designed to capture the representation theory of the symmetric groups and of classical groups over finite fields. The gist of this construction is to translate representation-theoretic operations such as induction and restriction and their parabolic variants to algebra and coalgebra operations such as multiplication and comultiplication. The Mackey formula, for example, is then reincarnated as the Hopf axiom on the algebra side. In this paper we take substantial steps to adapt these ideas for general linear groups over compact discrete valuation rings. We construct an analogous bialgebra that contains a large PSH-algebra that extends Zelevinsky’s algebra for the case of general linear groups over finite fields. We prove several base change results relating algebras over extensions of discrete valuation rings.
Original languageEnglish
Article number109516
JournalAdvances in Mathematics
Volume440
Early online date12 Feb 2024
DOIs
Publication statusPublished - Mar 2024

Bibliographical note

Acknowledgments. The third author was supported by the Australian Research Council (ARC FT160100018).

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